密植条件下玉米品种混播提高籽粒灌浆性能和产量
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胡旦旦,李荣发,刘鹏,董树亭,赵斌,张吉旺,任佰朝
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Mixed-Cropping Improved on Grain Filling Characteristics and Yield of Maize Under High Planting Densities
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HU DanDan,LI RongFa,LIU Peng,DONG ShuTing,ZHAO Bin,ZHANG JiWang,REN BaiZhao
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表4 密植条件下玉米品种混播花后干物质积累、分配及转运
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Table 4 Effects of different mixed-cropping of maize varieties on dry matter accumulation and transport after anthesis
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年份
Year | 密度
Planting density | 种植方式
Planting pattern | 花后干物质积累量
Dry matter accumulation
after anthesis (kg·hm-2) | 干物质转运量
Transfer amount of
dry matter (kg·hm-2) | 干物质转运率
Translocation efficiency of
dry matter (%) | 花后干物质转运对籽粒的贡献率
Contribution rate to grain of
dry matter transportation (%) | | 2017 | D1 | SZD958 | 13078.6gh | 1762. 6d | 21.4d | 14.0b | | SDH605 | 12699.4h | 1755.7d | 21.6d | 14.2ab | | M | 12936.8gh | 1847.9d | 22.5bcd | 14.7ab | | I | 12895.7gh | 1819.6d | 22.1cd | 14.5ab | | D2 | SZD958 | 13706.5ef | 1838.7d | 21.3d | 14.1ab | | SDH605 | 13386.8fg | 1986.9cd | 22.8bcd | 15.0ab | | M | 14172.4d | 2335.6ab | 24.1ab | 16.1ab | | I | 14100.9de | 2192.4bc | 23.1bcd | 15.5ab | | D3 | SZD958 | 15012.1c | 2231. 8bc | 22.7bcd | 15.4ab | | SDH605 | 15220.2bc | 2312.3ab | 23.5abc | 15.5ab | | M | 15562.9ab | 2512.6a | 25.0a | 16.3a | | I | 15773.9a | 2397.2ab | 24.0ab | 15.7ab | | 2018 | D1 | SZD958 | 12636.2ef | 1836.2g | 22.8e | 15.3e | | SDH605 | 12327.3f | 1879.2fg | 23.5de | 15.5de | | M | 12614.0ef | 2063.0ef | 24.7bcde | 17.0abcd | | I | 12929.2ef | 1842.5g | 23.0e | 15.4de | | D2 | SZD958 | 13247.6e | 2096.3de | 23.5de | 15.9cde | | SDH605 | 12773.2ef | 2187.4de | 23.8cde | 16.7bcde | | M | 13976.9d | 2411.2bc | 25.3abcd | 17.2abc | | I | 14335.6cd | 2282.4cd | 25.1bcd | 16.3cde | | D3 | SZD958 | 15477.8ab | 2445.6bc | 23.8cde | 17.2abc | | SDH605 | 14992.9bc | 2600.3ab | 25.8abc | 18.2ab | | M | 16148.3a | 2790.8a | 26.4ab | 18.4a | | I | 16157.2a | 2774.9a | 27.1a | 18.1ab |
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